JavaScript/jQuery FileManager Options

Default Value: false

This property is used when the UI component is displayed on a platform whose guidelines include the active state change for UI components.

allowedFileExtensions

Specifies the allowed upload file extensions.

Type:

Array<String>

Default Value: []

The FileManager UI component cannot upload a file and displays an error message when the file's extension is not allowed.

DevExtreme File Manager - Allowed File Extension

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        allowedFileExtensions: [".js", ".json", ".css"]
        // ...
    });
});

contextMenu

Configures the context menu settings.

Type: dxFileManagerContextMenu

currentPath

Specifies the path that is used when the FileManager is initialized.

Type:

Default Value: ''

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        currentPath: "Documents/Images"
        // ...
    });
});

currentPathKeys

Specifies an array of path keys to the current location.

Type:

Array<String>

Default Value: []

Each path part has each own key. For example, path "folder1/folder2" has two parts: 'folder1' with the 'f1' key and folder2 with the 'f2' key. To open this location, assign the ["f1","f2"] array of strings to the currentPathKeys property value.

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        currentPathKeys: ["EB458000-0341-6943", "92F5-4722-A7D6-98EB"]
        // ...
    });
});

customizeDetailColumns

Customizes columns in details view. Applies only if itemView.mode is "details".

Type:

Array<FileManagerDetailsColumn>

Function parameters:

columns:

The columns before customization.

Return Value:

Array<FileManagerDetailsColumn>

The columns after customization.

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        customizeDetailColumns: function(columns) {
            // ...
            // Customize the "columns" array objects here
            // ...
            return columns;
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-file-manager ...
    [customizeDetailColumns]="fileManager_customizeDetailColumns">
</dx-file-manager>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // Uncomment the following lines if the function should be executed in the component's context
    // constructor() {
    //     this.fileManager_customizeDetailColumns = this.fileManager_customizeDetailColumns.bind(this);
    // }

    fileManager_customizeDetailColumns(columns) {
        // ...
        // Customize the "columns" array objects here
        // ...
        return columns;
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxFileManagerModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxFileManagerModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

<template>
    <DxFileManager ...
        :customize-detail-columns="fileManager_customizeDetailColumns"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    methods: {
        fileManager_customizeDetailColumns(columns) {
            // ...
            // Customize the "columns" array objects here
            // ...
            return columns;
        }
    }
}
</script>

React

App.js

import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    // Uncomment the following lines if the function should be executed in the component's context
    // constructor(props) {
    //     super(props);
    //     this.fileManager_customizeDetailColumns = this.fileManager_customizeDetailColumns.bind(this);
    // }

    fileManager_customizeDetailColumns(columns) {
        // ...
        // Customize the "columns" array objects here
        // ...
        return columns;
    }

    render() {
        return (
            <FileManager ...
                customizeDetailColumns={this.fileManager_customizeDetailColumns}
            />
        );
    }
}
export default App;

customizeThumbnail

Allows you to provide custom icons to be used as thumbnails.

Type:

Function parameters:

fileSystemItem:

FileSystemItem

The file or folder whose thumbnail is being customized.

Return Value:

An icon to use as a thumbnail.

This function should return one of the following:

The icon's URL
The icon's name if the icon is from the DevExtreme icon library
The icon's CSS class if the icon is from an external icon library (see External Icon Libraries)
The icon in the Base64 format

disabled

Specifies whether the UI component responds to user interaction.

Type:

Default Value: false

elementAttr

Specifies the global attributes to be attached to the UI component's container element.

Type:

Default Value: {}

jQuery

$(function(){
    $("#fileManagerContainer").dxFileManager({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});

Angular

HTML

TypeScript

<dx-file-manager ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-file-manager>

import { DxFileManagerModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxFileManagerModule
    ],
    // ...
})

Vue

App.vue

<template>
    <DxFileManager ...
        :element-attr="fileManagerAttributes">
    </DxFileManager>
</template>

<script>
import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    data() {
        return {
            fileManagerAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>

React

App.js

import React from 'react';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    fileManagerAttributes = {
        id: 'elementId',
        class: 'class-name'
    }

    render() {
        return (
            <FileManager ...
                elementAttr={this.fileManagerAttributes}>
            </FileManager>
        );
    }
}
export default App;

fileSystemProvider

Specifies the file system provider.

Type:

Default Value: null

File system providers are components that provide APIs used to access and modify virtual file systems.

The following example illustrates how to configure an Object file system provider:

jQuery

index.js

data.js

$(function () {
    $("#file-manager").dxFileManager({
        fileSystemProvider: fileSystem,
        // ...
    });
});

var fileSystem = [
    {
        name: "Documents",
        isDirectory: true,
        items: [
            {
                name: "Projects",
                isDirectory: true,
                items: [
                    {
                        name: "About.rtf",
                        isDirectory: false,
                        size: 1024
                    },
                    {
                        name: "Passwords.rtf",
                        isDirectory: false,
                        size: 2048
                    }
                ]
            },
            {
                name: "About.xml",
                isDirectory: false,
                size: 1024
            },
            //...
        ],
    },
    {
        name: "Images",
        isDirectory: true,
        items: [
            {
                name: "logo.png",
                isDirectory: false,
                size: 20480
            },
            {
                name: "banner.gif",
                isDirectory: false,
                size: 10240
            }
        ]
    },
    //...
];

Refer to File System Providers for information on supported file system providers.

focusedItemKey

Specifies a key of the initially or currently focused item.

Type:

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        focusedItemKey: "item1_key"
    });
});

focusStateEnabled

Specifies whether the UI component can be focused using keyboard navigation.

Type:

Default Value: false

height

Specifies the UI component's height.

Type:

|

|

Return Value:

|

The UI component's height.

Default Value: undefined

This property accepts a value of one of the following types:

Number
The height in pixels.
String
A CSS-accepted measurement of height. For example, "55px", "80%", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
height: function() {
    return window.innerHeight / 1.5;
}
```

hint

Specifies text for a hint that appears when a user pauses on the UI component.

Type:

Default Value: undefined

hoverStateEnabled

Specifies whether the UI component changes its state when a user pauses on it.

Type:

Default Value: false

itemView

Configures the file and folder view.

Type:

Default Value: null

NOTE

Set the itemView.mode property to details to configure columns in the UI component.

DevExtreme File Manager - Item View

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        itemView: {
            mode: "details",
            showFolders: false,
            showParentFolder: false
        }
        // ...
    });
});

onContentReady

A function that is executed when the UI component's content is ready and each time the content is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

FileManager

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

Model data. Available only when using Knockout.

Default Value: null

onContextMenuItemClick

A function that is executed when a context menu item is clicked.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
event	Event (jQuery or EventObject)	The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery.
fileSystemItem	FileSystemItem	The file system item for which you invoke the context menu.
itemData	Object	The clicked item's data.
itemElement	HTMLElement \| jQuery	The item's container. It is an HTML Element or a jQuery Element when you use jQuery.
itemIndex	Number	The clicked item's index.
model	Object	Model data. Available only if you use Knockout.
viewArea	'navPane' \| 'itemView'	Specifies whether the context menu is invoked in the navigation panel or in the items area.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onContextMenuItemClick: function(e) {
            // Your code goes here
        }
    });
});

onCurrentDirectoryChanged

A function that is executed when the current directory is changed.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
directory	FileSystemItem	The current directory.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
model	Object	The model data. Available only if you use Knockout.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onCurrentDirectoryChanged: function(e) {
            // Your code goes here
        }
    });
});

onDisposing

A function that is executed before the UI component is disposed of.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

FileManager

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

Model data. Available only if you use Knockout.

Default Value: null

onErrorOccurred

A function that is executed when an error occurs.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
errorCode	Number	The error code. The following error codes are supported: NoAccess = 0 FileExists = 1 FileNotFound = 2 DirectoryExists = 3 DirectoryNotFound = 4 WrongFileExtension = 5 MaxFileSizeExceeded = 6 Other = 32767
errorText	String	The error message.
fileSystemItem	FileSystemItem	The processed file or directory.
model	Object	Model data. Available only if you use Knockout.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onErrorOccurred: function(e) {
            // Your code goes here
        }
    });
});

onFocusedItemChanged

A function that is executed when the focused item is changed.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
item	FileSystemItem	The currently focused file or directory.
itemElement	HTMLElement \| jQuery	The item's container. It is an HTML Element or a jQuery Element when you use jQuery.
model	Object	The model data. Available only if you use Knockout.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onFocusedItemChanged: function(e) {
            // Your code goes here
        }
    });
});

onInitialized

A function used in JavaScript frameworks to save the UI component instance.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

FileManager

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

onOptionChanged

A function that is executed after a UI component property is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name	Type	Description
model	Object	Model data. Available only if you use Knockout.
fullName	String	The path to the modified property that includes all parent properties.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
component	FileManager	The UI component's instance.
name	String	The modified property if it belongs to the first level. Otherwise, the first-level property it is nested into.
value	any	The modified property's new value.

Default Value: null

The following example shows how to subscribe to component property changes:

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onOptionChanged: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-file-manager ...
    (onOptionChanged)="handlePropertyChange($event)"> 
</dx-file-manager>

import { Component } from '@angular/core'; 

@Component({ 
    selector: 'app-root', 
    templateUrl: './app.component.html', 
    styleUrls: ['./app.component.css'] 
}) 

export class AppComponent { 
    // ...
    handlePropertyChange(e) {
        if(e.name === "changedProperty") { 
            // handle the property change here
        }
    }
}

import { BrowserModule } from '@angular/platform-browser'; 
import { NgModule } from '@angular/core'; 
import { AppComponent } from './app.component'; 
import { DxFileManagerModule } from 'devextreme-angular'; 

@NgModule({ 
    declarations: [ 
        AppComponent 
    ], 
    imports: [ 
        BrowserModule, 
        DxFileManagerModule 
    ], 
    providers: [ ], 
    bootstrap: [AppComponent] 
}) 

export class AppModule { }

Vue

App.vue

<template> 
    <DxFileManager ...
        @option-changed="handlePropertyChange"
    />            
</template> 

<script> 
import 'devextreme/dist/css/dx.common.css'; 
import 'devextreme/dist/css/dx.light.css'; 
import DxFileManager from 'devextreme-vue/file-manager'; 

export default { 
    components: { 
        DxFileManager
    }, 
    // ...
    methods: { 
        handlePropertyChange: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    } 
} 
</script>

React

App.js

import React from 'react'; 
import 'devextreme/dist/css/dx.common.css'; 
import 'devextreme/dist/css/dx.light.css'; 

import FileManager from 'devextreme-react/file-manager'; 

const handlePropertyChange = (e) => {
    if(e.name === "changedProperty") {
        // handle the property change here
    }
}

export default function App() { 
    return ( 
        <FileManager ...
            onOptionChanged={handlePropertyChange}
        />        
    ); 
}

onSelectedFileOpened

A function that is executed when the selected file is opened.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
file	FileSystemItem	The opened file.
model	Object	Model data. Available only if you use Knockout.

Default Value: null

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onSelectedFileOpened: function(e) {
            // Your code goes here
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-file-manager ...
    (onSelectedFileOpened)="fileManager_onSelectedFileOpened($event)">
</dx-file-manager>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    fileManager_onSelectedFileOpened(e) {
        // Your code goes here
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxFileManagerModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxFileManagerModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

<template>
    <DxFileManager ...
        :selected-file-opened="fileManager_onSelectedFileOpened"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    methods: {
        fileManager_onSelectedFileOpened(e) {
            // Your code goes here
        }
    }
}
</script>

React

App.js

import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    fileManager_onSelectedFileOpened(e) {
        // Your code goes here
    }

    render() {
        return (
            <FileManager ...
                onSelectedFileOpened={this.fileManager_onSelectedFileOpened}
            />
        );
    }
}
export default App;

onSelectionChanged

A function that is executed when a file system item is selected or selection is canceled.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
currentDeselectedItemKeys	Array<String>	The keys of the file system items whose selection has been cleared.
currentSelectedItemKeys	Array<String>	The keys of the file system items that have been selected.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
model	Object	Model data. Available only if you use Knockout.
selectedItemKeys	Array<String>	The keys of all selected file system items.
selectedItems	Array<FileSystemItem>	The currently selected file system items.

Default Value: null

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onSelectionChanged: function(e) {
            // Your code goes here
        }
    });
});

onToolbarItemClick

A function that is executed when a toolbar item is clicked.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
event	Event (jQuery or EventObject)	The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery.
itemData	Object	The clicked item's data.
itemElement	HTMLElement \| jQuery	The item's container. It is an HTML Element or a jQuery Element when you use jQuery.
itemIndex	Number	The clicked item's index.
model	Object	Model data. Available only if you use Knockout.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onToolbarItemClick: function(e) {
            // Your code goes here
        }
    });
});

permissions

Specifies actions that a user is allowed to perform on files and folders.

Type:

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        permissions: {
            create: true,
            copy: true,
            move: true,
            remove: true,
            rename: true
        },
        // ...
    });
});

rootFolderName

Specifies the root folder name.

Type:

Default Value: 'Files'

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        rootFolderName: "~/Files"
        // ...
    });
});

rtlEnabled

Switches the UI component to a right-to-left representation.

Type:

Default Value: false

When this property is set to true, the UI component text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.

JavaScript

DevExpress.config({
    rtlEnabled: true
});

selectedItemKeys

Contains an array of initially or currently selected files and directories' keys.

Type:

Array<String>

Default Value: []

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        selectedItemKeys: ["item1_key", "item2_key", "item3_key"]
    });
});

selectionMode

Specifies whether a user can select a single or multiple files and folders in the item view simultaneously.

Type:

Default Value: 'multiple'

Accepted Values: 'multiple' | 'single'

NOTE

The check boxes that select/unselect individual items are displayed only in multiple selection mode.

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        selectionMode: "single"
        // ...
    });
});

tabIndex

Specifies the number of the element when the Tab key is used for navigating.

Type:

Number

Default Value: 0

The value of this property will be passed to the tabindex attribute of the HTML element that underlies the UI component.

toolbar

Configures toolbar settings.

Type: dxFileManagerToolbar

DevExtreme File Manager - Toolbar

upload

Configures upload settings.

Type:

visible

Specifies whether the UI component is visible.

Type: